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From "steve lee (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DBCP-395) Please help.. Is it over connect or stucked?
Date Tue, 22 Jan 2013 07:50:13 GMT
steve lee created DBCP-395:
------------------------------

             Summary: Please help.. Is it over connect or stucked?
                 Key: DBCP-395
                 URL: https://issues.apache.org/jira/browse/DBCP-395
             Project: Commons Dbcp
          Issue Type: Bug
    Affects Versions: 1.2.1
         Environment: OS : Ubuntu 11.10
JDK : 1.6
Database : Oracle 10g
JDBC Driver : oracle jdbc driver type 4
DB Commits per secs : 600
            Reporter: steve lee


We had ran email sendding system over 10 years. Recently we had oracle connection problem.
We have 8 servers and all servers had same problem.
My system's thread dump is following. I appreciate any helps. Thanks.

...
"Thread-6293" daemon prio=10 tid=0x00007f65cc35e800 nid=0x637c waiting for monitor entry [0x00007f65c6e3b000]
   java.lang.Thread.State: BLOCKED (on object monitor)
        at ep.server.epmailer.util.EPPoolingDataSource.getConnection(EPPoolingDataSource.java:72)
        - waiting to lock <0x00000000fb430c20> (a java.lang.Class for ep.server.epmailer.util.EPPoolingDataSource)
        at ep.server.epmailer.EPMailSenderThread.checkOtherMailerStatus(EPMailSenderThread.java:2799)
        at ep.server.epmailer.EPMailSenderThread.run(EPMailSenderThread.java:438)
        at java.lang.Thread.run(Thread.java:662)

"Thread-6292" daemon prio=10 tid=0x00007f65cc35d800 nid=0x637b waiting for monitor entry [0x00007f65beab4000]
   java.lang.Thread.State: BLOCKED (on object monitor)
        at ep.server.epmailer.util.EPPoolingDataSource.getConnection(EPPoolingDataSource.java:72)
        - waiting to lock <0x00000000fb430c20> (a java.lang.Class for ep.server.epmailer.util.EPPoolingDataSource)
        at ep.server.epmailer.EPMailSenderThread.updateSuccessMail(EPMailSenderThread.java:2597)
        at ep.server.epmailer.EPMailSenderThread.run(EPMailSenderThread.java:330)
        at java.lang.Thread.run(Thread.java:662)
"Thread-6291" daemon prio=10 tid=0x00007f65cc80c000 nid=0x6377 runnable [0x00007f65beaf4000]
   java.lang.Thread.State: RUNNABLE
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.read(SocketInputStream.java:129)
        at oracle.net.ns.Packet.receive(Unknown Source)
        at oracle.net.ns.NSProtocol.connect(Unknown Source)
        at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:844)
        at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:268)
        at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:414)
        at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
        at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
        at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
        at java.sql.DriverManager.getConnection(DriverManager.java:582)
        at java.sql.DriverManager.getConnection(DriverManager.java:185)
        at org.apache.commons.dbcp.DriverManagerConnectionFactory.createConnection(DriverManagerConnectionFactory.java:48)
        at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:290)
        - locked <0x00000000c231e9a8> (a org.apache.commons.dbcp.PoolableConnectionFactory)
        at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:771)
        at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:95)
        at ep.server.epmailer.util.EPPoolingDataSource.getConnection(EPPoolingDataSource.java:75)
        - locked <0x00000000fb430c20> (a java.lang.Class for ep.server.epmailer.util.EPPoolingDataSource)
        at ep.server.epmailer.EPMailSenderThread.checkOtherMailerStatus(EPMailSenderThread.java:2799)
        at ep.server.epmailer.EPMailSenderThread.run(EPMailSenderThread.java:438)
        at java.lang.Thread.run(Thread.java:662)

"Thread-6290" daemon prio=10 tid=0x00007f65cc1b8800 nid=0x6376 waiting for monitor entry [0x00007f65c68e6000]
   java.lang.Thread.State: BLOCKED (on object monitor)
        at ep.server.epmailer.util.EPPoolingDataSource.getConnection(EPPoolingDataSource.java:72)
        - waiting to lock <0x00000000fb430c20> (a java.lang.Class for ep.server.epmailer.util.EPPoolingDataSource)
        at ep.server.epmailer.EPMailSenderThread.checkOtherMailerStatus(EPMailSenderThread.java:2799)
        at ep.server.epmailer.EPMailSenderThread.run(EPMailSenderThread.java:438)
        at java.lang.Thread.run(Thread.java:662)

"Thread-6289" daemon prio=10 tid=0x00007f65cc318800 nid=0x6375 waiting for monitor entry [0x00007f65bebb8000]
   java.lang.Thread.State: BLOCKED (on object monitor)
        at ep.server.epmailer.util.EPPoolingDataSource.getConnection(EPPoolingDataSource.java:72)
        - waiting to lock <0x00000000fb430c20> (a java.lang.Class for ep.server.epmailer.util.EPPoolingDataSource)
        at ep.server.epmailer.EPMailSenderThread.updateRecvTable(EPMailSenderThread.java:2943)
        at ep.server.epmailer.EPMailSenderThread.run(EPMailSenderThread.java:463)
        at java.lang.Thread.run(Thread.java:662)

...

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